Magnetic Fields, Flux Density & Motor Effect - GCSE & A-level Physics (full version)
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- Опубликовано: 12 июн 2024
- scienceshorts.net Please don't forget to leave a like if you found this helpful!
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00:00 Magnetic field lines
04:51 Magnetic flux & flux density (field strength)
07:00 Field around current in wire
08:17 Motor effect, F=BIL, Fleming's left hand rule
15:04 Experiment -
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8:01- RH rule
8:40- motor effect
9:36- LH rule 😂
13:20- fred=bil (the force a wire feels when it is in a magnetic field)
14:01- using the LH rule
16:00- experiment: use electron balance to measure effect of length and current on force
Ps. Don’t delete this comment, I marked the times for easy reference so I can study fast 😄. Thanks for the video
For anyone who cant remember which finger represents what for the left hand rule, use FBI so first finger force second finger magnetic field B and last is current I
We got taught that too, our teacher just kept shouting "FREEZE, FBI" whilst doing the left hand rule as if it was a gun
can i safely assume that magnetic flux density is the same as magnetic field strength?
i learnt it via FMC - first finger F stands for Father, second finger M stands for Mother, third finger C stands for Child
Father Mother Child
if you can't remember the left or right hand, there's really no point in trying to memorize ....
@@encheng2664 Nice!
I really want to express my heartfelt thanks to you as you've taught me what my teacher was trying to teach for 2 weeks, in just 20 minutes.
Dravidana? Tamilana?
How did a level go? 🤣
This is premium content.This channel is so underrated.
Spread the word 😉
I don’t have 6 fingers so does Flemings left hand rule still work for me?
you only use 5 fingers ,jezz infact there are only 3
@@ignatiusmudzviti5015 r/woooosh
Rip
Obviously a joke
@@realchestro2986 you don't say
I'm usually not the best at concentrating (adhd things), but your videos got me hooked up! I've been watching non-stop for 3 hours, so easy and clear, thank you for your work!
I love you. I've been dreading this topic so much that even crash course physics couldn't help me. You've really helped me understand though. Thanks!
Same!
Science shorts, I am forever in your doubt .... the Cyclotron you explained in full details with the derivation of it , and the magnet on the balance and finding magnetic flux density and many more ... the exact same scenario Came to the AQA exam paper 2 ... I couldn't do them if it wasn't because of your help. I really hope something really good happen in your life because you have just made my hope of getting an A grade in ALEVEL physics to come alive again . Thanks a lot
+Nima the leagend Nimatheleagend That's great to hear! Glad it helped :)
you mean debt right? xD
Just discovered this channel really useful in-depth revision material thankyou
Clem Edwards trttftffr
fact
For the flemings left hand rule, u can use the following to remember what the fingers indicate:
Father: Force(thumb)
Mother: Magnetic field direction(index)
Child: Current(2nd finger)
Or
FBI
F=force
B= b field
I= current
Would totally love to see one on Electromagnetic Induction, AC Generators and Transformers! This video was super helpful! Thanks :)
+Timo Next on my list after free charges!
Uk and Ireland at 3:37 had me dead 😂😂
I've watched multiple other videos, but this one actually explained what is going on in detail
Well I'm glad that I found this the night before my exam!
Hi, my teacher recently showed a nicer way to remember flemming left hand rule being that, your hand looks like a gun so you must be the FBI. Then just remember it in that order being F(Thumb) B(Index Finger) and I (middle finger). just a little easier way to remember. Great videos man keep them up, hopefully i can bag an A in physics because of you. Thanks man
What grade did you get in a level physics in the end?
thank you for your videos, currently teaching myself what i missed in class due to illness
Finally someone who can teach. I've watched an unbelievable number of videos on this subject. I knew it was basic simple but our education system produces simpletons instead of teachers. Thank you thank you thank you.
THIS WAS SOOO HELPFUL! 100% going to share with friends, extremely helpful and simple information. Thank you!
videos like this are gonna get me into uni. thank you!
an easy wat to remember what the fingers stand for with Flemings left hand rule is using F=BIL. starting with the thumb, which represents force, they are in the same order as the equation.
You made it super easy to understand in a short time, thank you so much man!
A tip to rember the 11:06 section
Which hand to use and for what
MotoR has one R so it's the LHR (left hand Rule)
GeneRatoR has two Rs so it's the RHR (Right hand Rule)
I just got a “Physics Online” ad on a “Science Short” video 😂😂
They should do a revision battle....
Ooh, fancy! Some of us aren't flush enough to afford ads 😅
Science Shorts 😂😂😂 I don’t think you need ads, the video quality field strength is strong enough to attract the students.
(Can’t believe you actually replied 😭)
This is awesome, I love your videos.
Do you think you could do a video with key word definitions for every topic? I feel like it'll help a lot of people cause key words are a pain and difficult to remember.
@scienceshorts yes please
Shout out to his Fleming Left Hand 👏🏻
Thanks a bunch! Super clear and easy to understand! Helped a lot!
this is called the perfect lecture, made us study with 100% concentration, but even made us laugh during left hand rule:))))))
Thank you, really cleared things up!
These videos are way too good. forever grateful
finally found the perfect explanation, helped a lot!
You're a God send! You're videos have helped me so much! Thank you!!!
such a helpful guide which actually related to OCR SPEC A (new spec)
your perspective drawings are insane!!🥵
☺love that 3D hand drawing, very insightful lecture🔥👍
Quick way to remember what hand rule to use. Right hand rule is generating so its basically gene-right-ing. IM very late to this video but wow is it helpful - A-levels in 2 weeks and looking over last years papers i need to do a lot more work.
Hope it went well
thank you so much for your work! A-Level Physics is super hard for me and my teacher's really difficult to deal with. Your videos help a lot Much appreciated :>
Thank you! This was very helpful 😊
your channel is lit man
thanks for everything
I learned so much from your video😁. Thanks man
Brilliant explanation. Thank you!!
THANK YOU SO MUCH! THIS IS REALLY HELPFUL
I like the drawing of the globe at 3:20. Got all the important bits
Thank you so much😊Great explanation and memorizing methods are also easy👍
Thank you for this awesome video! 😊
You are such a legend, thank you so much!
I spent all my time revising the first year stuff, so I have been really panicking about the second year stuff. I still don't expect that good a mark, but these videos are fantastic, and have given me a chance lol. Thanks so much 👍
I'm with you, I've done the exact same thing 😰🤷♂️
Thanks for the informative video - I was wondering if you've made any videos which refer to hall probes (part of magnetic fields/flux)
my physics teacher kinda sucks so i often find myself teaching the material to myself. needless to say this channel has greatly helped with that so thanks a lot
Thank you so much!! I finally understand it! Thank you sir
Another way to remember the Left Hand Rule is by remembering it as
(Thumb) Father - Force
(Index finger) Mother - Magnetic Field
(Middle finger) Child - Current
These videos are so helpful !
I'm not even A level just puzzled by magnets u really helped simplify
Incredibly useful video, thank u Sir
Thank u soooo much!! Please can u do a video on vector diagrams and calculating magnitude/direction for GCSE
Thank you very much, this was really helpful!
Helped me alot. Thankyou keep doing this grt work
very educative. Thank you Regards
simple and good explanation
This was really easy explained. 🙏
Fantastic review clips
The best physics channel.
+Dylan Vadher Cheers!
Hi Science shorts great vid as always, my question is at 16:45. why is the force acting on the wire upwards if you want a downwards force on the scale to get a reading? thanks :)
Newton's 3rd law I think
You’re a life saver
I remember the rule as my right-hand fingers (out-stretched) as the Magnetic Field B, my thumb as the Direction of Current, and my palm as the Force as if you'd slap something.
Many many Thank you sir..
I have caught all the concept from this video..
Take love❤️🇧🇩
THANK YOU, THIS HELPED ME ALOT. I have always been confused on this topic and I really needed to understand this as I am going for A*. Will be visiting this channel again for sure after my UCAS, hope I get into University of Manchester :D
Bruh you are so good! Life saver!!!!
This is really good
THANKSSSS it was very fun and educATIONAL a starrrr coming SOON
This is really helpful. Thanks you
You're so underrated.
Really helpful thank you!! 😆
Ampère, was inspired by Hans Christian Ørsted, and came up with right-hand screw rule, coffee-mug rule or the corkscrew-rule. Orsted discovered deflecting compass in 1820, electromagnet discovered in 1825 by Sturgen, 1831 first dynamo by Faraday, 1832 DC motor by Sturgen, In 1823 Ampère's originally derived the rule, this was when he was studying effects of current directions between two conductors.
thank you for the helpful content ! i truly appreciate your work
If you still need help with A Level Physics, you should check out Alt Academy, we have a TON of resources, including video lessons, revision guides, 24/7 academic support, handwritten past paper solutions with explanations on each step, and we even have our instructors sit live every night and solve a timed past paper, explaining why they're taking each step.
Jazakallah Khair
This is a great explanation, as always. I do want to ask you that what effect is exerted on a compass needle owing to its proximity to a current carrying wire? Please guide.
I'll be writing this in 8 hrs time, I'm now in a better position so thank you.
A good way to remember Earth's magnetism:
A compass that points North is pointing to the North Geographic Pole but since North is attracted to South, the North Pointer is actually pointing to the Magnetic South Pole
Great lecture
Thank you for the nice explanation! But I think I prefer to think right hand rule for the direction of the force. We can keep our thumb as the direction of the current (as in the original right hand rule), then point with index finger towards the direction of the magnetic field, which leads your palm to face the direction of the force :D
+younedward 0_o
UHAAAA THANKS SO MUCH SIR !
heres my thanks! muah~
The video was great!! In detail as well ...
I had a doubt:
In the example, we need to think in a way that the wire will experience an upward force and instead the magnets will be pushed down as the wire is fixed. Why do we not consider the force to be moving downwards itself ?
Thank you.
Thank you so much!!!
Thank you ❤️❤️
thanks a lot .. very helpful
Great excellent lecture
Please make more videos about particles physics such as particle interactions
Thank u so muchhh! !!
for flemings rule my teacher told us to use "father, mother child". from the thumb to middle finger. father being force, mother being magnetic field, and child being current
wow good
This was super helpful but I just couldn’t stop laughing when I looked at the hand you drew for Flemings left hand rule
WHY DOES EVERYONE HATE MY HAAAAND :'(
I can safely assume that I can get an A in physics because of your videos! Thanks!
Excellent
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Please upload videos in communication systems. Would be a great help to everyone.
day before exam revision whooosh
Have my physics mid in 20 mins thanks for this 😂
Why do you want the force to go upwards (away from the scale) and not just directly down into the scale?
Sir, is it true that a constant e.m.f is being induced in an electric circuit simply due to the fact that there is a constant change in flux linkage( the magnetic fields of the electrons are interacting with the magnetic field of the coil of wire).
Hello, at 17:07 do the forces follow Newton’s third law. As you stated equal?
Tq it helps alot
Thank u very much sir🫶
why is my starting current increases in the circuit, if I used bigger stronger field magnets for DC motor (stator)? Have exam on Wednesday here...